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Secure quantum conversation through non-destructive discrimination of highly entangled multipartite states

2009/06/30 by Sakshi Jain, Sreraman Muralidharan, Prasanta K. Panigrahi
Computer Science · Mathematics · Physics and Astronomy · #Combinatorics #Computer science #Law #Mathematics #Multipartite #Multipartite entanglement #Physics #Political science #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum channel #Quantum entanglement #Quantum mechanics #Scheme (mathematics) #Squashed entanglement #Theoretical computer science #Topology (electrical circuits) #Unitary state #W state #quant-ph

paper · pdf · doi:10.1209/0295-5075/87/60008

6 pages

openalex publication_date 2009/09/01 · arxiv created 2009/09/12 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

"Quantum conversation" is a way in which two parties can communicate classical information with each other using entanglement as a shared resource. We present this scheme using a multipartite entangled state after describing its generation through appropriate circuit diagrams. We make use of a discrimination scheme which allows one to perform a measurement on the system without destroying its entanglement. We later prove that this scheme is secure in a noiseless and a lossless quantum channel.

Citations